Δρακόπουλος Σ. Α. Choice theoretical foundations of union utility functions involving discontinuities. SPOUDAI Journal of Economics and Business, [S. l.], v. 53, n. 3, p. 3–13, 2004. Disponível em: http://spoudai.org/index.php/journal/article/view/435. Acesso em: 10 nov. 2024.